Serves4
                    
                
                
                    
                        
                            - Active Time:25 min
- Start to Finish:30 min
 
            
                
                    
                    The classic combination of sausage and greens takes on a pasta companion in this warming dish that peaks with red-pepper flakes and Parmigiano-Reggiano.
                
            
            
                
                
                
    
      
          
          
          
              
              
              
          
          
          
          
          
              
              
              June 2006
            
          
          
      
  
                
                
            
            
            
            
            
            
            
                
                    
                    
                    
                        
                            
                            
                            
                                
                                    
                                        - 
                                            3/4
                                            lb
                                            Swiss chard (preferably red; from 1 bunch)
                                            
                                        
- 
                                            1/2
                                            lb
                                            kielbasa, quartered lengthwise, then cut crosswise into 1/2-inch-thick pieces
                                            
                                        
- 
                                            2
                                            tablespoons
                                            olive oil
                                            
                                        
- 
                                            1/2
                                            teaspoon
                                            salt
                                            
                                        
- 
                                            2
                                            
                                            garlic cloves, finely chopped
                                            
                                        
- 
                                            1/2
                                            cup
                                            water
                                            
                                        
- 
                                            1/4
                                            teaspoon
                                            dried hot red-pepper flakes
                                            
                                        
- 
                                            3/4
                                            lb
                                            penne
                                            
                                        
- 
                                            1
                                            oz
                                            finely grated Parmigiano-Reggiano (1/2 cup) plus additional for serving
                                            
                                        
 
                    
                 
            
            
            
            
            
            
            
            
                
                    
                    
                    
                        
                            
                                
                                
                                
                                    
                                        - 
                                            
                                            Cut out center ribs and stems from chard, then thoroughly wash, along with leaves, in several changes of cold water. Cut ribs and stems crosswise into 1/4-inch-thick pieces and coarsely chop leaves. 
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                                            Cook kielbasa in oil in a 5-quart heavy pot over moderately high heat, stirring occasionally, until golden, 2 to 3 minutes. Transfer with a slotted spoon to a bowl. Cook chard ribs and stems with salt in fat remaining in pot over moderate heat, stirring occasionally, 3 minutes. Add garlic and cook, stirring, 1 minute. Add chard leaves, water, and red-pepper flakes and simmer, partially covered, until chard stems are tender, about 5 minutes. Remove lid and stir in kielbasa. 
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                                            Cook pasta in a large pot of boiling salted water until al dente, then reserve 1/2 cup pasta-cooking water and drain pasta in a colander. Add pasta to chard mixture with cheese and salt to taste and toss until combined well. Thin with some of reserved pasta water if necessary.